That depends on your priorities. I've set up something functionally similar on all five of my STAR tools for less than $3 each, using a dollar store plastic funnel, piece of PVC water pipe, and a hose clamp. That said, I've always admired the workshops and garages that some people have which look like they could be featured in Architectural Digest. An extra $66 isn't unreasonable for one of those...
My own loading & casting areas aren't quite so pretty, as you can see here: